Safari is not loading pages correctly or even not at all. Help please!

So my Safari is not loading pages correctly, making some have just plain text with no images, and others partially loaded with no images or no video.

Some pages, after trying to refresh, completely refuse to load and say that Safari can't find the server. These pages work on firefox, which is also on the same computer and what I am having to use to type this currently.

I have already reset Safari, as well as disabled extensions (which I didn't have any) and neither has fixed the issue.